Abstract The object seems to travel with supersonic speed and in a straight line with very likely a roughly constant altitude over the ground. In addition to the usually smear effect due to the camera's insufficiently short shutter time one or many smaller objects or a slightly lengthy object is attached or following the object closely on an identical path. This is a unique feature of this footage and is not replicated by any other case that I am aware of.

Video Info

Source:	YouTube.com/watch?v=CNoFOSfFlAk
User:	ACentaur100
Published:	12 Oct 2016
Resolution:	1080p
Frame rate:	30fps
Drone model:	DJI Phantom 3 Pro
Files:	archived original description and comments on YouTube

Content Info

Viewpoint*:	35.805325, -79.087017goo.gl/maps/5FRqRPpWm7p
Time†:	10 Dec 2016 06:28 (Eastern Daylight Time, UTC-04:00)
Weather:	18.8°C, 1022.2hPa, 81% humid., 5.6 no windmore

Object Analysis Results

Appears in frames:	42 to 124 (00:01:400 to 00:04:133 m:s:ms)
First/last appearance*:	(35.790066, -79.092528) / (35.805028, -79.087417)
Object's direction:	S to N
Passed distance:	1.74km (20.96m per frame)
Traveling speed:	2264.1km/hReview methodology for this estimate

Fig A.1. Distance between camera and nearest publicly available weather station at .

* Geographic coordinates are given as a vector of latitudes and longitudes in format WGS 84 as used by Google maps.

† The detailed point in time of the capture was stated by the originator of the footage.